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Basic mechanism to achieve clean combustion of oil shale in fluidized beds

Technical Report ·
OSTI ID:6155612
; ;
Results are presented of a study undertaken to analyze and assess fluidized bed oil shale combustion, particularly from an environmental standpoint. Oil shales are classified and characterized and their properties are described. Attention is focused on mineralogical composition, porosity, specific gravity, specific heat, calorific value, thermal conductivity, trace metal content, and sulfur and nitrogen content. The mechanisms and kinetics of oil shale retorting and combustion are discussed. The clean combustion of oil shale is examined and fluidized bed oil shale combustion is explored. The simulation of oil shale combustion in a fluidized bed, 6 inches in diameter, is described. The advantages of combustion in a fluidized bed are listed, including: (1) fluidized beds can be effectively used to burn oil shale to produce heat or steam at a high combustion frequency and (2) gaseous pollutants can be removed during combustion inside the bed. Disadvantages are noted, including: (1) the spent shale from a 10-ton steam/hour boiler is estimated to be 78 tons per day at the fresh oil shale feed rate of 104 tons per day; and (2) the fluidized bed must be maintained at a relatively low temperature of 810C.
Research Organization:
Huey Corp., Morgantown, WV (USA)
OSTI ID:
6155612
Report Number(s):
PB-84-220854
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040500* -- Oil Shales & Tar Sands-- Properties & Composition
AIR POLLUTION CONTROL
BITUMINOUS MATERIALS
CALORIFIC VALUE
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION PRODUCTS
COMBUSTION PROPERTIES
CONTROL
DECOMPOSITION
DENSITY
ENERGY SOURCES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
INDUSTRIAL WASTES
KINETICS
MATERIALS
MATHEMATICAL MODELS
MINERALOGY
NITROGEN COMPOUNDS
NITROGEN OXIDES
OIL SHALES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLLUTION CONTROL
POROSITY
REACTION KINETICS
RETORTING
SPECIFIC HEAT
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL CONDUCTIVITY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
WASTES